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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 1897 | jermar | 1 | /* |
| 2 | * Copyright (C) 2006 Jakub Jermar |
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| 3 | * All rights reserved. |
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| 4 | * |
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| 5 | * Redistribution and use in source and binary forms, with or without |
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| 6 | * modification, are permitted provided that the following conditions |
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| 7 | * are met: |
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| 8 | * |
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| 9 | * - Redistributions of source code must retain the above copyright |
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| 10 | * notice, this list of conditions and the following disclaimer. |
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| 11 | * - Redistributions in binary form must reproduce the above copyright |
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| 12 | * notice, this list of conditions and the following disclaimer in the |
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| 13 | * documentation and/or other materials provided with the distribution. |
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| 14 | * - The name of the author may not be used to endorse or promote products |
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| 15 | * derived from this software without specific prior written permission. |
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| 16 | * |
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| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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| 27 | */ |
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| 28 | |||
| 29 | /** @addtogroup sparc64 |
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| 30 | * @{ |
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| 31 | */ |
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| 32 | /** @file |
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| 33 | */ |
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| 34 | |||
| 35 | #include <arch/drivers/scr.h> |
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| 36 | #include <genarch/ofw/ofw_tree.h> |
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| 37 | #include <genarch/fb/fb.h> |
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| 38 | #include <arch/types.h> |
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| 39 | #include <typedefs.h> |
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| 40 | #include <func.h> |
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| 41 | #include <align.h> |
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| 42 | #include <print.h> |
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| 43 | |||
| 1898 | jermar | 44 | #define FFB_REG_24BPP 7 |
| 45 | |||
| 1897 | jermar | 46 | scr_type_t scr_type = SCR_UNKNOWN; |
| 47 | |||
| 48 | /** Initialize screen. |
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| 49 | * |
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| 50 | * Traverse OpenFirmware device tree in order to find necessary |
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| 51 | * info about the screen device. |
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| 52 | * |
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| 53 | * @param node Screen device node. |
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| 54 | */ |
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| 55 | void scr_init(ofw_tree_node_t *node) |
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| 56 | { |
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| 57 | ofw_tree_property_t *prop; |
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| 58 | const char *name; |
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| 59 | |||
| 60 | name = ofw_tree_node_name(node); |
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| 61 | |||
| 62 | if (strcmp(name, "SUNW,m64B") == 0) |
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| 63 | scr_type = SCR_ATYFB; |
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| 64 | else if (strcmp(name, "SUNW,ffb") == 0) |
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| 65 | scr_type = SCR_FFB; |
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| 66 | |||
| 67 | if (scr_type == SCR_UNKNOWN) { |
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| 68 | printf("Unknown keyboard device.\n"); |
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| 69 | return; |
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| 70 | } |
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| 71 | |||
| 72 | uintptr_t fb_addr; |
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| 73 | uint32_t fb_width = 0; |
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| 74 | uint32_t fb_height = 0; |
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| 75 | uint32_t fb_depth = 0; |
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| 76 | uint32_t fb_linebytes = 0; |
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| 77 | uint32_t fb_scanline = 0; |
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| 78 | |||
| 79 | prop = ofw_tree_getprop(node, "width"); |
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| 80 | if (prop && prop->value) |
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| 81 | fb_width = *((uint32_t *) prop->value); |
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| 82 | |||
| 83 | prop = ofw_tree_getprop(node, "height"); |
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| 84 | if (prop && prop->value) |
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| 85 | fb_height = *((uint32_t *) prop->value); |
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| 86 | |||
| 87 | prop = ofw_tree_getprop(node, "depth"); |
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| 88 | if (prop && prop->value) |
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| 89 | fb_depth = *((uint32_t *) prop->value); |
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| 90 | |||
| 91 | prop = ofw_tree_getprop(node, "linebytes"); |
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| 92 | if (prop && prop->value) |
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| 93 | fb_linebytes = *((uint32_t *) prop->value); |
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| 94 | |||
| 95 | prop = ofw_tree_getprop(node, "reg"); |
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| 96 | if (!prop) |
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| 97 | panic("Can't find \"reg\" property.\n"); |
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| 98 | |||
| 99 | switch (scr_type) { |
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| 100 | case SCR_ATYFB: |
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| 101 | if (prop->size / sizeof(ofw_pci_reg_t) < 2) { |
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| 102 | printf("Too few screen registers.\n"); |
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| 103 | return; |
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| 104 | } |
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| 105 | |||
| 106 | ofw_pci_reg_t *fb_reg = &((ofw_pci_reg_t *) prop->value)[1]; |
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| 107 | ofw_pci_reg_t abs_reg; |
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| 108 | |||
| 109 | if (!ofw_pci_reg_absolutize(node, fb_reg, &abs_reg)) { |
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| 110 | printf("Failed to absolutize fb register.\n"); |
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| 111 | return; |
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| 112 | } |
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| 113 | |||
| 114 | if (!ofw_pci_apply_ranges(node->parent, &abs_reg , &fb_addr)) { |
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| 115 | printf("Failed to determine screen address.\n"); |
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| 116 | return; |
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| 117 | } |
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| 118 | |||
| 119 | if (fb_depth == 24) |
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| 120 | fb_scanline = fb_linebytes * 4; |
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| 121 | else |
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| 122 | fb_scanline = fb_linebytes * (fb_depth >> 3); |
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| 123 | |||
| 124 | break; |
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| 1898 | jermar | 125 | case SCR_FFB: |
| 1986 | decky | 126 | fb_depth = 32; |
| 1898 | jermar | 127 | fb_scanline = 8192; |
| 128 | |||
| 129 | ofw_upa_reg_t *reg = &((ofw_upa_reg_t *) prop->value)[FFB_REG_24BPP]; |
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| 130 | if (!ofw_upa_apply_ranges(node->parent, reg, &fb_addr)) { |
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| 131 | printf("Failed to determine screen address.\n"); |
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| 132 | return; |
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| 133 | } |
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| 134 | |||
| 135 | break; |
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| 1897 | jermar | 136 | default: |
| 137 | panic("Unexpected type.\n"); |
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| 138 | } |
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| 139 | |||
| 140 | fb_init(fb_addr, fb_width, fb_height, fb_depth, fb_scanline, true); |
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| 141 | } |
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| 142 | |||
| 143 | /** @} |
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| 144 | */ |